The literature on cluster analysis is reviewed. Journal articles on cluster analysis are listed, the literature citing works on cluster analysis is examined, and the jargon which has developed in this field is discussed. (JKS)

Three statistical analysis procedures for analysis of repeated measures data are examined. The procedures are classical mixed model analysis of variance, multivariate analysis of repeated measures, and the analysis of covariance structures. (Author/JKS)

The strategy for investigating convergent and discriminant test validity, known as the multitrait-multimethod matrix, is investigated. A nonparametric significance testing procedure is suggested and demonstrated. (JKS)

This study is concerned with how different modes of attention influence anticipatory reactivity and, in addition to investigating initial reactivity, examines the influence of attention upon habituation. (Author/RK)

Results of a number of experiments conforming to a particular paradigm have yielded a highly systematic relation between the probability that recallable words are not recognized and the probability of recognition of all words. This recognition failure is largely constant with many conditions that greatly affect both recognition and (cued) recall.…

EXPLORE is a flexible computer program for analyzing multiple data sets. The investigator has the option of focusing on the original variables, or of selecting a reduced rank solution where original variables are summarized by a principal components analysis. (Author/JKS)

Compares the rates of forgetting of five-item sequences of acoustically similar and dissimilar consonants and words in the absence of proactive and retroactive interference in order to test whether within sequence similarity rather than stimulus length would have a greater influence on retention. (Author/RK)

A model was proposed as an alternative to current models for categorical perception, which refers to the apparent responding to stimuli only in absolute terms. The model proposed that a single (common) factor causes both a peak in the discrimination function and a categorical dichotomy and thus the correlation between the two. (Editor/RK)

Attempted to provide a direct investigation of the nature and stress-reducing quality of complementary projection, a process by which an individual attributes causality for his or her own feelings, traits, or behaviors onto other people. (Author/RK)

This study posits that social learning theory can explain development of structure in preadults' political attitudes better than the much-discussed "vulnerability" and "two-step" hypotheses. (Author)

It was hypothesized that thought would result in greater attitude polarization than distraction and that this effect would be more pronounced with better developed "schemas" (naive theories) for thinking about the attitude object. (Editor)

"How can the children learn," parents ask, "when they are having so much fun? How can they learn when all they do is play?" Examines the work of educational theorists in answering such questions. (Author/RK)

Tests three proposed attentional mechanisms as possible behavioral strategies by which schizophrenics could prevent relevant information from registering and considers whether stimulation coming through the visual or the auditory channels is differentially susceptible to motivated attempts to disattend to relevant information. (Author/RK)

One of the most frequently encountered problems in educational research and evaluation is that of evaluating the effect of a treatment in settings over which the researcher or evaluator has little control. A strong plea is made for use of quasi-experimental designs in these situations and this research provides a method of testing the hypothesis…

There is a fundamental gap between people's assertions as to what is right or wrong and their actual behavior. This has been traditionally attributed to "akrasia" or weakness of the will. This research examines this concept and considers what moral education can do about it. (Editor/RK)